38920285 has 16 divisors (see below), whose sum is σ = 47869056. Its totient is φ = 30367168.

The previous prime is 38920253. The next prime is 38920307. The reversal of 38920285 is 58202983.

It is a cyclic number.

It is not a de Polignac number, because 38920285 - 2⁵ = 38920253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59832 + ... + 60478.

It is an arithmetic number, because the mean of its divisors is an integer number (2991816).

Almost surely, 2^38920285 is an apocalyptic number.

It is an amenable number.

38920285 is a deficient number, since it is larger than the sum of its proper divisors (8948771).

38920285 is a wasteful number, since it uses less digits than its factorization.

38920285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 38920285 is about 6238.6124258524. The cubic root of 38920285 is about 338.8899350600.

The spelling of 38920285 in words is "thirty-eight million, nine hundred twenty thousand, two hundred eighty-five".